Heartbreak From Gilteritinib: Two Case Reports of Delayed Onset Cardiotoxicity

Activating mutations of FMS-like Tyrosine Kinase 3 (FLT3) occur in a subset of patients with acute myeloid leukemia (AML) and confer a poor prognosis. Gilteritinib, an oral FLT3 inhibitor approved for the treatment of relapsed or refractory AML, has been shown to improve survival and remission rates...

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Main Authors: Kristi Dutta, Ethan D. Kotloff, Manu M. Mysore
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Case Reports in Cardiology
Online Access:http://dx.doi.org/10.1155/cric/1976122
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author Kristi Dutta
Ethan D. Kotloff
Manu M. Mysore
author_facet Kristi Dutta
Ethan D. Kotloff
Manu M. Mysore
author_sort Kristi Dutta
collection DOAJ
description Activating mutations of FMS-like Tyrosine Kinase 3 (FLT3) occur in a subset of patients with acute myeloid leukemia (AML) and confer a poor prognosis. Gilteritinib, an oral FLT3 inhibitor approved for the treatment of relapsed or refractory AML, has been shown to improve survival and remission rates compared with salvage chemotherapy. This case report presents two patients initiated on gilteritinib for relapsed AML who developed new onset left ventricular systolic dysfunction. After ruling out other common etiologies, gilteritinib was discontinued due to concern for cancer therapy–related cardiac dysfunction with subsequent improvement in ejection fraction. These cases demonstrate a rare but serious adverse effect of gilteritinib, cardiotoxicity manifested as left ventricular systolic dysfunction, for which more studies are needed to elucidate the underlying pathophysiology.
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series Case Reports in Cardiology
spelling doaj-art-bc76dc53190e4a9c8947cba4eb0f0a0a2025-08-20T03:48:46ZengWileyCase Reports in Cardiology2090-64122025-01-01202510.1155/cric/1976122Heartbreak From Gilteritinib: Two Case Reports of Delayed Onset CardiotoxicityKristi Dutta0Ethan D. Kotloff1Manu M. Mysore2Department of MedicineDepartment of MedicineDivision of Cardiovascular MedicineActivating mutations of FMS-like Tyrosine Kinase 3 (FLT3) occur in a subset of patients with acute myeloid leukemia (AML) and confer a poor prognosis. Gilteritinib, an oral FLT3 inhibitor approved for the treatment of relapsed or refractory AML, has been shown to improve survival and remission rates compared with salvage chemotherapy. This case report presents two patients initiated on gilteritinib for relapsed AML who developed new onset left ventricular systolic dysfunction. After ruling out other common etiologies, gilteritinib was discontinued due to concern for cancer therapy–related cardiac dysfunction with subsequent improvement in ejection fraction. These cases demonstrate a rare but serious adverse effect of gilteritinib, cardiotoxicity manifested as left ventricular systolic dysfunction, for which more studies are needed to elucidate the underlying pathophysiology.http://dx.doi.org/10.1155/cric/1976122
spellingShingle Kristi Dutta
Ethan D. Kotloff
Manu M. Mysore
Heartbreak From Gilteritinib: Two Case Reports of Delayed Onset Cardiotoxicity
Case Reports in Cardiology
title Heartbreak From Gilteritinib: Two Case Reports of Delayed Onset Cardiotoxicity
title_full Heartbreak From Gilteritinib: Two Case Reports of Delayed Onset Cardiotoxicity
title_fullStr Heartbreak From Gilteritinib: Two Case Reports of Delayed Onset Cardiotoxicity
title_full_unstemmed Heartbreak From Gilteritinib: Two Case Reports of Delayed Onset Cardiotoxicity
title_short Heartbreak From Gilteritinib: Two Case Reports of Delayed Onset Cardiotoxicity
title_sort heartbreak from gilteritinib two case reports of delayed onset cardiotoxicity
url http://dx.doi.org/10.1155/cric/1976122
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AT ethandkotloff heartbreakfromgilteritinibtwocasereportsofdelayedonsetcardiotoxicity
AT manummysore heartbreakfromgilteritinibtwocasereportsofdelayedonsetcardiotoxicity